{"product_id":"s-s-cycle-00-06-bt-4-3-8in-stroke-flywheel-assembly-w-o-sprocket-shaft-bearing-race","title":"S\u0026S Cycle 00-06 BT 4-3\/8in Stroke Flywheel Assembly w\/o Sprocket Shaft Bearing Race","description":"This 4-3\/8\" stroke 8-1\/2\" diameter flywheel assembly replaces the original flywheels in 2003-'06 HD® internally balanced big twin engines, increasing the stroke from 4\" to 4-3\/8\". Sprocket shaft does not have a stock style bearing race pressed on.\n\u003cul\u003e\n  \u003cli\u003eAssembly is trued to less than .0005\" runout on pinion and sprocket shaft bearing surfaces, making them capable of higher rpm and fully compatible with gear drive cams\u003c\/li\u003e\n  \u003cli\u003eFlywheels are CNC machined from heat-treated, closed die, steel forgings, which are 114 percent stronger than late style stock steel flywheels\u003c\/li\u003e\n  \u003cli\u003eFully assembled with premium quaility S\u0026amp;S® heavy duty 7.667\" connecting rods, with full width wrist pin ends, and dynamically balanced\u003c\/li\u003e\n  \u003cli\u003eThe only joints in the assembly are where the 1.671\" diameter connecting rod crankpin is pressed into the flywheels\u003c\/li\u003e\n  \u003cli\u003eThis flywheel assembly is for crankcases with Timken® sprocket shaft bearing\u003c\/li\u003e\n  \u003cli\u003ePinion and sprocket shafts are forged as part of the flywheel\u003c\/li\u003e\n  \u003cli\u003ePinion shaft has sprocket to drive balancer chain\u003c\/li\u003e\n  \u003cli\u003eFlywheel assembly is three piece design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUpgrade your Harley Davidson Big Twin engine with the S\u0026amp;S Cycle Part Number SSC320-0355 4-3\/8 inch stroke flywheel assembly, designed specifically for models from 2000 to 2006. This precision-crafted assembly increases the engine's stroke from 4 inches to 4-3\/8 inches, enhancing performance and power output. Constructed from heat-treated, closed die steel forgings, these CNC-machined flywheels are 114 percent stronger than late-style stock steel flywheels, providing durability and reliability under demanding riding conditions. Fully assembled with premium S\u0026amp;S heavy-duty 7.667-inch connecting rods featuring full-width wrist pin ends, the assembly ensures smooth operation and balanced performance. The design maintains less than .0005 inch runout on pinion and sprocket shaft bearing surfaces, making it capable of higher RPMs and fully compatible with gear drive cams. The assembly includes a forged pinion and sprocket shaft, with the sprocket shaft driving the balancer chain, and is intended for engines with Timken sprocket shaft bearings. The three-piece construction ensures ease of installation and maintenance, with the only joints being where the 1.671-inch diameter connecting rod crankpin is pressed into the flywheels. Compatible with a wide range of Harley Davidson models including Softail and Heritage Softail series, this flywheel assembly is an essential upgrade for performance enthusiasts seeking increased power and durability from their engine. Note that the sprocket shaft does not have a stock-style bearing race pressed on, and the assembly is not CARB approved, making it suitable for off-road or race applications. Enhance your Harley’s performance with this high-quality, precision-engineered flywheel assembly from S\u0026amp;S Cycle.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eIncreases engine stroke from 4\" to 4-3\/8\" for enhanced power\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eConstructed from heat-treated, CNC-machined steel forgings for superior strength\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFully assembled with durable S\u0026amp;S heavy-duty 7.667\" connecting rods\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned with less than .0005\" runout for high RPM compatibility\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes forged pinion and sprocket shafts, with sprocket to drive balancer chain\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eThree-piece design for straightforward installation and maintenance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompatible with engines fitted with Timken sprocket shaft bearings\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSuitable for Harley Davidson models from 2000 to 2006\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\nHarley Davidson FLST Heritage Softail Base 2006\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 2000\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 2001\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 2002\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 2003\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 2004\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 2006\u003cbr\u003e\nHarley Davidson FLSTF Fat Boy Base 2000\u003cbr\u003e\nHarley Davidson FLSTF Fat Boy Base 2001\u003cbr\u003e\nHarley Davidson FLSTF Fat Boy Base 2002\u003cbr\u003e\nHarley Davidson FLSTF Fat Boy Base 2003\u003cbr\u003e\nHarley Davidson FLSTF Fat Boy Base 2004\u003cbr\u003e\nHarley Davidson FLSTF Fat Boy Base 2006\u003cbr\u003e\nHarley Davidson FLSTN Softail Deluxe Base 2006\u003cbr\u003e\nHarley Davidson FLSTS Heritage Springer Base 2000\u003cbr\u003e\nHarley Davidson FLSTS Heritage Springer Base 2001\u003cbr\u003e\nHarley Davidson FLSTS Heritage Springer Base 2002\u003cbr\u003e\nHarley Davidson FLSTS Heritage Springer Base 2003\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 2000\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 2001\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 2002\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 2003\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 2004\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 2006\u003cbr\u003e\nHarley Davidson FXSTB Night Train Base 2000\u003cbr\u003e\nHarley Davidson FXSTB Night Train Base 2001\u003cbr\u003e\nHarley Davidson FXSTB Night Train Base 2002\u003cbr\u003e\nHarley Davidson FXSTB Night Train Base 2003\u003cbr\u003e\nHarley Davidson FXSTB Night Train Base 2004\u003cbr\u003e\nHarley Davidson FXSTB Night Train Base 2006\u003cbr\u003e\nHarley Davidson FXSTBI Night Train Base 2001\u003cbr\u003e\nHarley Davidson FXSTBI Night Train Base 2002\u003cbr\u003e\nHarley Davidson FXSTBI Night Train Base 2003\u003cbr\u003e\nHarley Davidson FXSTBI Night Train Base 2004\u003cbr\u003e\nHarley Davidson FXSTBI Night Train Base 2006\u003cbr\u003e\nHarley Davidson FXSTD Softail Deuce Base 2000\u003cbr\u003e\nHarley Davidson FXSTD Softail Deuce Base 2001\u003cbr\u003e\nHarley Davidson FXSTD Softail Deuce Base 2002\u003cbr\u003e\nHarley Davidson FXSTD Softail Deuce Base 2003\u003cbr\u003e\nHarley Davidson FXSTD Softail Deuce Base 2004\u003cbr\u003e\nHarley Davidson FXSTD Softail Deuce Base 2006\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 2000\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 2001\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 2002\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 2003\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 2004\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 2006","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":53943335125308,"sku":"ssc320-0355","price":1794.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1865\/9007\/files\/f2f02d7ef65a3112bf84b0b27a18224a_c0dbfdbe-99e1-4382-8d7a-512df9f6859e.png?v=1785191329","url":"https:\/\/necycleshop.com\/products\/s-s-cycle-00-06-bt-4-3-8in-stroke-flywheel-assembly-w-o-sprocket-shaft-bearing-race","provider":"NE Cycle Shop","version":"1.0","type":"link"}